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    22.
    发明专利
    未知

    公开(公告)号：DE69400713D1

    公开(公告)日：1996-11-21

    申请号：DE69400713

    申请日：1994-01-15

    Applicant: CORNING INC

    Inventor： GRATEAU LUC ,  PRASSAS MICHEL

    IPC: C03C3/11 ,  C03C4/06 ,  C03C3/093

    Abstract: A photochromic glass with the compsn. (wt.%, oxide basis) 52-58 SiO2, 16-21 B2O3, 6-9 Al2O3, 1.5-2.8 ZrO2, 2-3.5 Li2O, 0-2.5 Na2O, 4-8 K2O, 2-3.5 CaO and 1.2-2.5 TiO2, with 0.15-0.25 wt.% Ag, 0.06-0.13 wt.% Br, 0.25-0.40 wt.% Cl and 0.003-0.007 wt.% CuO as photochromic components and 2-10 ppm Au and up to 0.9% Er2O3 displays a pink hue in the darkened state, and bodies at 2 mm cross section have optical properties comprising: (i) luminous transmittance over 82% when undarkened, (ii) 20-32% and 35-55% darkened luminous transmittance after 15 min. exposure to actinic radiation at 25 deg. C and 40 deg. C respectively, (iii) a recovery of at least 30% in transmittance, to at least 50% transmittance, 5 min. after removal from exposure, and (iv) x and y trichromatic coordinates of 0.3500-0.3700 and 0.3250-0.3450 respectively.

    OPTICAL AMPLIFIER APPARATUS
    23.
    发明公开
    OPTICAL AMPLIFIER APPARATUS 有权
    OPTISCHEVERSTÄRKERVORRICHTUNG

    公开(公告)号：EP1019991A4

    公开(公告)日：2000-10-18

    申请号：EP98939303

    申请日：1998-08-12

    Applicant: CORNING INC

    Inventor： JACOB DAVID ,  PRASSAS MICHEL

    IPC: G02B27/28 ,  H01S3/06 ,  H01S3/10 ,  H04B10/291 ,  H04B10/297 ,  H04J14/02 ,  H04N7/22 ,  H04B10/17 ,  H04B10/207

    CPC classification number: H04J14/0221 ,  H04B10/291 ,  H04B10/2912 ,  H04B10/2972 ,  H04J14/02

    Abstract: There is proposed an optical amplifier apparatus particularly for use in networks distributing signals by optical fibers, comprising first and second parallel optical branches (1, 2), the first optical branch (1) including optical amplifier means (5, 6) for amplifying digital signals and the second optical branch including optical amplifier means (7) for amplifying analogue signals, the optical amplifier means (5, 6) of the first optical path (1) being adapted to amplify bi-directional digital signals and the optical amplifier means (7) of the second optical branch (2) being adapted to amplify unidirectional analogue signals.

    Abstract translation: 提出了一种特别用于光纤分配信号的网络中的光学放大器装置，它包括第一和第二并行光分支（1,2），第一光分支（1）包括光放大器装置（5,6），用于放大数字 信号，第二光分支包括用于放大模拟信号的光放大装置（7），第一光路（1）的光放大装置（5,6）适于放大双向数字信号，光放大装置 所述第二光学分支（2）的所述第一光学分支（7）适于放大单向模拟信号。

    METHOD FOR MAKING AN ARTICLE HAVING A GRADIENT OF COMPOSITION
    24.
    发明公开
    METHOD FOR MAKING AN ARTICLE HAVING A GRADIENT OF COMPOSITION 失效
    VERFAHREN ZUM HERSTELLEN EINER GEGENSTAND MIT GRADIENTZUSAMMENSETZUNG

    公开(公告)号：EP0848688A4

    公开(公告)日：1998-10-28

    申请号：EP96927354

    申请日：1996-08-07

    Applicant: CORNING INC

    Inventor： PRASSAS MICHEL ,  KERDONCUFF ALAIN ,  GILLE CLAUDE FRANCOIS MAURICE

    IPC: C03B19/02 ,  C03B17/02 ,  C03B32/00 ,  C03B37/012 ,  C03B13/10

    CPC classification number: C03B37/01268 ,  C03B17/02 ,  C03B17/025 ,  C03B32/00 ,  Y02P40/57 ,  Y10T428/1086 ,  Y10T428/31601

    Abstract: According to the invention, a) at least the first and second compositions of this material in the fluid phase are prepared, b) a sheet (61) of the first composition is poured continuously onto a flat support (4), c) a sheet (62) of the second composition is poured continuously onto sheet (61) of the first composition, and d) the thermal interdiffusion of the materials of the two sheets is ensured so as to obtain the desired gradient of composition in the cooled bar.

    Abstract translation: 根据本发明，a）制备至少流体相中该材料的第一和第二组合物，b）将第一组合物的片材（61）连续地倾倒到平面载体（4）上，c）将片材 （62）连续地倒在第一组合物的片材（61）上，并且d）确保两片材料的热互相扩散，以便在冷却的棒材中获得所需的组成梯度。

    Erbium-doped multicomponent glasses manufactured by the sol-gel method
    28.
    发明专利
    Erbium-doped multicomponent glasses manufactured by the sol-gel method 未知

    公开(公告)号：AU3465001A

    公开(公告)日：2001-09-24

    申请号：AU3465001

    申请日：2001-01-30

    Applicant: CORNING INC

    Inventor： PRASSAS MICHEL ,  WAKU JEAN

    IPC: C03B8/02 ,  C03C1/00 ,  C03C3/06 ,  C03C3/095 ,  C03C13/04 ,  C03C3/102 ,  C03C4/12

    Abstract: A multicomponent particulate gel includes 80-100 mole% SiO2, 1-10 mole% X2O, 1-10 mole% YO, 1-15 mole% Al2O3, and 0.1-5.0 weight% Er2O3, where X represents lithium, sodium, potassium, or mixtures thereof and Y represents calcium, barium, magnesium, lead or mixtures thereof, and the ratio of Al2O3 to (X2O+YO) is between about 0.9 and about 2.5. A process of manufacturing the gel includes hydrolyzing alkoxide derivatives of silicon, aluminum, erbium, lithium, sodium, potassium, calcium, barium, magnesium, lead or mixtures thereof in water to generate their respective hydroxide derivatives; polymerizing the hydroxide derivatives to produce a gel slurry comprising an essentially silica network; and drying the gel slurry to produce the gel.

    30.
    发明专利
    未知

    公开(公告)号：FR2769139B1

    公开(公告)日：1999-12-24

    申请号：FR9712083

    申请日：1997-09-29

    Applicant: CORNING INC

    Inventor： PRASSAS MICHEL ,  JACOB DAVID

    IPC: G02B27/28 ,  H01S3/06 ,  H01S3/10 ,  H04B10/291 ,  H04B10/297 ,  H04J14/02 ,  H04N7/22 ,  H01S3/0941 ,  H04B10/20

    Abstract: There is proposed an optical amplifier apparatus particularly for use in networks distributing signals by optical fibers, comprising first and second parallel optical branches (1, 2), the first optical branch (1) including optical amplifier means (5, 6) for amplifying digital signals and the second optical branch including optical amplifier means (7) for amplifying analogue signals, the optical amplifier means (5, 6) of the first optical path (1) being adapted to amplify bi-directional digital signals and the optical amplifier means (7) of the second optical branch (2) being adapted to amplify unidirectional analogue signals.

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